Method of producing gas



(No Model.)

A. W. PUTMAN-GRAMER. METHOD OF PRODUCING GAS.

Patented Mar. 1, 1892.

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UNITED STATES PATE T OFFIcE.-

ANTHON WV. PUTMAN-ORAMER, OF BROOKLYN, NEW YORK.

METHOD OF PRODUCING GAS.

SPECIFICATION forming part of Letters Patent N 0. 470,007, dated March 1, 1892.

Application filed August 25, 1891- Eterial No. 403,657. (No model.) i

To all whom it may concern.-

Be it known that I, ANTHON W. PUTMAN- pRAlVIER, a citizen of the United States, residing 1n Brooklyn, Kings county, and State of New York, have invented certain new and useful Improvements in the Method of Producing Gas, of which the following is a specification, reference being had to the accompanying drawings. 7

My invention relates especially to and has for its object an economical method of manufacturing gas wherein decomposed steam exposed to the presence of carbon is a prominent ingredient.

The invention consists in efiecting the combustion of a mass of carbon or carbonaceous material or fuel in one chamber, in combining 1n controlled quantities within a special heated intermediate mixing-chamber a new supply of air with the carbonic oxide arising from the combustion of said mass of carbon and passing said combined air and carbonic oxlde to the bottom of and up through a mass of carbon inclosed in a third chamber to asslst in its heating and combustion, and finally 1n passing steam at high temperature through both of said masses of carbon while in a state of incandescence to effect a complete decomposition of said steam.

In the accompanying drawings, Figures 1 and 2 represent outside elevations of a furnace within which may be operated and accomplished my improved method of producing gas. Fig.- 3 represents a vertical section, and Fig. 4 a horizontal section, of the same.

The structure is preferably built of firebrick or like refractory material inclosed in sheet metal after any of the ordinary methods.

Similar letters of reference designate like parts or portions in all the figures.

Letter A designates the complete furnace, comprising within its inclosure chambers B, B, and B chambers B and B having grates b and 19*, located to support the fuel-carbon or carbonaceous material through which the steam isto be passed when in an incandescent state;

B designates an intermediate chamber inclosed between the adjacent Walls a and a of thevtwo chambers B and B into-and through which, by means of passage cl, the carbonic oxide arising from the heating and combustion of the carbon contained in chamber B is passed as developed. Into this chamber-B a new and controlled supply of air is passed at c, to be mixed with the contained carbonic oxide as it moves through, thereby effecting its ignition and burning. From chamber B the burning gases are passed to the bottom of chamber B through passage 01, up through the grate b to heat and ignite the carbon or carbonaceous material placed upon said grate, assisting materially in the raising of the temperature of said carbon within chamber B to that necessary for the reliable decomposition of the steam and efiecting considerable economy in both time and fuel required. To efiect a proper and economical combustion and incandescence of the carbon or carbonaceous material within chamber B it is necessary to pass the draft or gases in an upward direction. With the gases of combustion from the first mass of carbon in chamber B forced to pass in a downward direction through the second mass of carbon in chamber B a serious trouble is met with in the constantly-increasing mass of ashes or incombustibles accumulating at the top of said second mass of carbon. Hence the necessity that communication should be opened between the top of the first mass of carbon within chamber B and the bottom of chamber B The mixing-cham ber B efliects such communication. Again, without a controlled admission of new air to the carbonic oxide and a thorough mixing of the two its economical ignition and combustion would be doubtful and uncertain. To facilitate this mixture of admitted air with the carbonic oxide while passing through intermediate chamber B, side jets or tuyeres c c are located at its admission end to force the air to pass directly across and'at right angles to the path of the carbonic oxide, and, when mixed, out with it through passage d.

For the admission of air for combustion purposes an air-supply pipe 0 connects through a Valve 0' with one or more branch pipes O for its admission to the space below the grate at the cleaning of openings 7c is of chamber B and with special branch pipe 0 valve C ,-and

connecting branches 0 for its admission to the intermediatechamber B through the jets or tuyeres c 0, located on each side of said chamber B. For the exit of the products of combustion an uptake or chimney D is provided with a valve (Z at its top end for the opening or closingof the same. For the passage of the manufactured gas out from chamber 13 a branch E is made in this same uptake or chimney D, whereby when the valve (1 is closed a free exit of said gas is provided for. To admit steam for decomposition, a supply-pipe F connects through valve F and branch pipes F with the several connectingjet branches e e 6, through which it passes to the spaces below the grates of each of the carbon-chambers B and B Vhile the two masses of carbon in chambers B and B are reaching the necessary state of incandescence the valve (Z of the uptake or chimney D is kept open and the products of combustion allowed to pass out. With the raising of the carbon to an incandescence or to a temperature sufiiciently high for a successful decomposition of the steam the admission of air is shut off and the chimney-valve (l is closedtight. The steam to be decomposed is then admitted to the bottom of both chambers B and B That admitted to the bottom of chamberB passes up through the incandescent carbon inchamber B, thence down through the intermediate chamber B to mingle with the steam admitted to the bottom of chamber 13 and with it to pass up through the incandescent carbon of chamber B for continued decomposition, whence it passes out through D and E, valve d being closed. Vhen the two masses of carbon become too cool for decomposition uses, the steam'is shut off and combustion-drafts and air-admission resumed.

YVhat I claim as new, and desire to secure by Letters Patent, is

The improved method of producing gas through the intermingling of steam or water vapor with carbon, which consists in eifecting the combustion and incandescence of a first mass of carbon within its inclosin g chamber, in combining within a special intermediate chamber a new supply of air with the carbonic oxide arising from the combustion of said first mass of carbon, igniting and passingsaid combined air and carbonic oxide to the bottom of and upwardly through a second inclosed mass of carbon to eifect its incandescence, and in sim ultaneously passin gsteam upwardly through both of said incandescent masses of carbon to eflfect its decomposition and widespread exposure to the heated carbon, substantially as setforth.

ANTHON \V. PUTMAN-CRAMER.

Vitnesses:

WM. I-I. WEIGHTMAN, ISABEL CHESTER. 

